Ryanair operates a point-to-point network rather than a traditional hub-and-spoke system. The airline flies a highly ...

Now in its 70th year, NORAD's Santa Tracker has become a global phenomenon, with people around the world eagerly tracking the computer simulation of Santa and his Reindeer dropping off presents to ...

Abstract: The quadrotor vehicle control system possesses characteristics such as nonlinearity and strong coupling. This paper presents a design for a quadcopter unmanned aerial vehicle (UAV) flight ...

China’s state broadcaster has offered a rare look inside the People’s Liberation Army’s war-gaming activities, airing footage ...

The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer ...

Black holes are among the most extreme objects in the universe, and now scientists can model them more accurately than ever ...